#3971ba
a balanced, vivid blue · cool · closest name: steelblue
RGB
57, 113, 186
HSL
214°, 53%, 48%
CMYK
69, 39, 0, 27
Luminance
0.1623
Every format
| HEX | #3971ba |
| RGB | rgb(57, 113, 186) |
| HSL | hsl(214, 53%, 48%) |
| CMYK | cmyk(69%, 39%, 0%, 27%) |
| LAB | lab(47.3 6.0 -43.9) |
| LCH | lch(47.3 44.3 277.7) |
| OKLCH | oklch(0.547 0.129 256.0) |
Copy-ready code
/* CSS */
color: #3971ba;
background-color: #3971ba;
/* Tailwind (arbitrary) */
class="text-[#3971ba] bg-[#3971ba]"
/* SCSS */
$brand: #3971ba;
/* SwiftUI */
Color(red: 0.224, green: 0.443, blue: 0.729)
/* Android */
Color.parseColor("#3971ba")Accessibility — WCAG contrast
Aa
#3971ba on white: 4.95:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3971ba on black: 4.25:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green44.3%
Blue72.9%
CMYK percentages
Cyan69.4%
Magenta39.2%
Yellow0.0%
Key (black)27.1%
Color previews
#3971ba text on a black background
contrast 4.25:1
Card sample
#3971ba text on a white background
contrast 4.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3971ba;
Background color
Panel with #3971ba background
background-color: #3971ba;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3971ba;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 113, 186, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 113, 186, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3971ba; background: linear-gradient(135deg, #3971ba, #5739BA);